/* Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.flowable.crystalball.simulator.impl.replay;

import java.util.Map;

import org.flowable.crystalball.simulator.SimulationEvent;
import org.flowable.crystalball.simulator.SimulationEventHandler;
import org.flowable.crystalball.simulator.SimulationRunContext;
import org.flowable.crystalball.simulator.delegate.event.impl.EventLogUserTaskCompleteTransformer;
import org.flowable.crystalball.simulator.impl.StartReplayLogEventHandler;
import org.flowable.engine.runtime.ProcessInstance;
import org.flowable.task.api.Task;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 * complete user task handler for replay purposes
 * 
 * @author martin.grofcik
 */
public class ReplayUserTaskCompleteEventHandler implements SimulationEventHandler {

    private static final Logger LOGGER = LoggerFactory.getLogger(ReplayUserTaskCompleteEventHandler.class);

    @Override
    public void handle(SimulationEvent event) {
        String taskDefinitionKey = (String) event.getProperty(EventLogUserTaskCompleteTransformer.TASK_DEFINITION_KEY);
        String processInstanceId = (String) event.getProperty(EventLogUserTaskCompleteTransformer.PROCESS_INSTANCE_ID);
        String simulationRunId = SimulationRunContext.getSimulationRunId();
        ProcessInstance processInstance = SimulationRunContext.getRuntimeService().createProcessInstanceQuery().variableValueEquals(StartReplayLogEventHandler.PROCESS_INSTANCE_ID, processInstanceId)
                .variableValueEquals(StartReplayLogEventHandler.SIMULATION_RUN_ID, simulationRunId).singleResult();

        Task task = SimulationRunContext.getTaskService().createTaskQuery().processInstanceId(processInstance.getId()).taskDefinitionKey(taskDefinitionKey).singleResult();

        @SuppressWarnings("unchecked")
        Map<String, Object> variables = (Map<String, Object>) event.getProperty(EventLogUserTaskCompleteTransformer.TASK_VARIABLES);
        if (variables != null) {
            if (event.getProperty(EventLogUserTaskCompleteTransformer.VARIABLES_LOCAL_SCOPE) != null
                    && ((Boolean) event.getProperty(EventLogUserTaskCompleteTransformer.VARIABLES_LOCAL_SCOPE)).booleanValue()) {

                SimulationRunContext.getTaskService().complete(task.getId(), variables, true);

            } else {
                SimulationRunContext.getTaskService().complete(task.getId(), variables);
            }
            LOGGER.debug("completed {}, {}, {}", task, task.getName(), variables);
        } else {
            SimulationRunContext.getTaskService().complete(task.getId());
            LOGGER.debug("completed {}, {}", task, task.getName());
        }
    }

    @Override
    public void init() {

    }
}
